Una sustancia A se mezcla en cantidades iguales con otra sustancia B. Admitiendo que al cabo de 1000 segundos la mitad de A haya reaccionado y que luego de 2000 segundos sólo queda 0,25 de la cantidad inicial, determine si el proceso pertenece a una reacción de primer orden calculando su k.

Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: 2al(s)+3cl2(g)→2alcl3(s) what is the maximum mass of aluminum chloride that can be formed when reacting 32.0 g of aluminum with 37.0 g of chlorine? express your answer to three significant figures and include the appropriate units.

Liv sheldon given the balanced equation for an organic reaction: c2h2 + 2cl2 → c2h2cl4 this reaction is best classified as *

Compare and contrast physical changes with chemical changes.